I'm another .net developer, who loves linux. I have had daydreams of porting the software at work to mono, so we can have Mac and Linux versions, but it isn't going to happen.

When I use linux, I much prefer to use languages where linux is the "1st class" platform (and not Java or JRE based). Mono is improving all the time, but C# doesn't have the attraction for me outside of work.